Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-10S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X300-10S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 300mm stroke, G3/8 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ63 mm
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 29 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-10S
The hard-anodized aluminum barrel leaves out external rods, making the body noticeably shorter and more compact than a same-bore ISO 15552 unit. A G3/8 port feeds the double-acting double rod, while the integrated magnet works seamlessly with CMSE/DMSE sensors dropped into the side grooves.
The JSIJ63X300-10S uses an external stop screw to trim the extend stroke by up to 10 mm on site, giving a usable range of 290 to 300 mm without swapping the actuator. This on-site adjustability lets you fine-tune the stroke end to match varied tooling lengths. The retract end remains fixed, and the adjustable air cushions provide 29 mm of deceleration at each end.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-10S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-10S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G3/8 |
| Rod thread | M18×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
Model Code: Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-10S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×300 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-10S Is Used
Tooling Length Calibration
Dial in the exact extend end position within a 290 to 300 mm window to compensate for varying gripper jaw lengths without machining new spacers.
Pallet Stopper Adjustment
Fine-tune the stopping point of varying pallet widths on a conveyor line by turning the external adjuster rather than repositioning the whole cylinder.
Vertical Press Positioning
Set a precise lower pressing limit on the down stroke, safely lowering the tool head by up to 10 mm to accommodate different material thicknesses.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-10S the Right Cylinder?
The 10 mm extend-shortening window is especially useful when you need to share a single spare cylinder across multiple stroke variants or dial in a precise end position after mounting. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Because the -S suffix denotes a built-in magnet, you can fit CMSE/DMSE reed or electronic switches directly into the profile grooves. Since the 300 mm stroke is fairly long, always support the load with an external guide to prevent rod bending and excessive side loading.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-10S FAQ
This 63 mm bore cylinder uses a G3/8 air port. At 0.7 MPa the push increases to 2182 N and the pull to 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa.
The nominal 300 mm stroke is the maximum length. The external adjuster lets you shorten the extend stroke by up to 10 mm on site, giving a usable extend range of 290 to 300 mm. The retract end is fixed, and this stop mechanism only sets the end position rather than holding the load.
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